Jesus bridges the chasm of sin that is separating us from God. It's in the Bible, I Timothy 2:5-6, NIV. "For there is one God and one mediator between God and men, the man Christ Jesus, who gave Himself as a ransom for all men—the testimony given in its proper time."
Jesus represents us before God the Father. It's in the Bible, Hebrews 7:25, NIV. "Therefore He is able to save completely those who come to God through Him, because He always lives to intercede for them."